Traps



(No Model.) 4

J. H. AUSTIN. FORCING CYLINDER POR CLEANING TRAPS. No. 382,129. PatentedMay 1, 1888.

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JOHN HENRY AUsTIN, or NEW YORK, N. Y.

FORCING-CYLINDER FOR CLEANING TRAPS.

SPECIFICATION forming part of Letters Patent No. 382,129, dated May 1,1888.

Application filed April 26, 1887. Serial No. 236,147. (No model.)

To all whom it may concern.-

Be it known that I, .IoHN HENRY AUSTIN,

a citizen of the United States, and a resident .vision of a deviceportable and simple in construction, cheap in manufacture, easy tooperate, and which will be efficient in practical use. To attain thedesired end my invention consists in the construction and arrangement ofparts hereinafter fully set forth.

. In the drawings, Figure l represents a vertical section of myforcing-cylinder, and Fig. 2 a view of my device in operation. `Likeletters of reference, wherever they occur,indicate corresponding partsin all the figures.

Referring to the drawings, A represents the body of my forcing-cylinder,preferably constructed out of tubular brass and provided at its lowerend with a flange, a2, under and at the outer end of which is secured around rubber ring, c3, as is clearly shown in the drawings. The upperportion of the tube Ais provided with a turned Ywooden head or top, a,the part-s being rigidly held together by means of the brass screws c4.

`A solid brass plunger or piston, B, is adapted to work within the tubeA, and has its edges provided with a groove of concave form, so as to beadapted to admit of suitable packing being inserted in the same. Forsuch packing I prefer to use a solid rope packing, b2, as, ou account ofits adaptability to expand or contract, according as it is in amoistened or dry condition,V it always forms an air and water tightpacking when in use The plunger-rod b, which passes through the apertureor hole a' of the wooden head or top a, which aperture I ordinarily linewith brass, is slightly smaller than the aperture a, and is providedwith two screws, b3, to limit its downward motion, and terminates in thewooden handle b', of ordinary construction, as shown. The operation ofparts is as follows: In using the device the vessel, bowl, tub, &c., atthetop of the trap or pipe to be operated upon is provided with a smallquantity of Water, and my forcing-cylinder is placed over thedischargeorice, the handle being depressed, as shown in Fig. 2. Uponraising the handle b the whole column of water, E, in the pipe D bctweenthe stoppage e and the forcing-cylinder A will be lifted up, the air inthe cylinder above the plunger B in the meantime escaping through theenlarged hole or tube a', and upon depressing the handle b the column ofwater will be forced downward again through the pipe D, and uponrepeating the operation once or twice it will be found that thesediment, 85o., forming the stoppage e has become loosened and dislodgedand will flow downward through the escape-pipe together with the columnof water, E, when the latter is released by the removal of theforcing-cylinder A, thus leaving the trap or pipe clear.

It will be observed that by means of my forcing-cylinder a stoppage atany distance from the basin C can be operated upon as readily as onenear at hand.

As it is evident that many slight changes in the construction andrelative arrangement of parts might be resorted to without departingfrom the spirit and scope of my invention, I would have it understoodthat I do not restrict myself to the particular construction andarrangement of parts shown and described, but that I reserve the rightto make such changes, and that Vhat I claim as new, and desire to secureby Letters Patent, is

1. A forciugcylinder for cleaning traps, pipes, and the like, comprisinga cylinder open at its lower end and a piston in said cylinder,

vsubstantially as set forth.

2. A forcing cylinder for cleaning traps, pipes, and the like,comprising a metallic cylinder open at its lower end and a water-tightpiston in said cylinder, substantially as set forth.

3. A forcing cylinder for cleaning traps, pipes, and the like,comprisinga rigid cylinder open at one end and provided with apacking-ring around its open end, in combination with a piston workingin said cylinder, substantially as set forth.

IOO

4. A forcing cylinder for cleaning traps, pipes, and the like,comprising a rigid cylinder open at its lower end and having a closedtop with a central guide-aperture, and apacking-ring around the open endof the cylinder, in combination with a piston working in said cylinder,a packing-ring carried by the piston between it and the cylinder, and anoperatingrod xed to the piston and extending upward through the aperturein the top of the cylinder, substantially as set forth.

5. A forcing cylinder for cleaning traps, pipes, and the like,comprising a cylinder open

